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Dailey, J.E.: Subject headings (1980)
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Broadbent, E.: ¬The online catalog : dictionary, classified, or both? (1989)
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Larson, R.R.: Experiments in automatic Library of Congress Classification (1992)
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Russell, M.A.: Inconsistencies in subject headings in young adult resources (1991)
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Dykstra, M.: ¬The lion that squeaked (1978)
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